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Jun 15,2026
Analysis of the reasons for the decrease in power factor on the power supply side after the AHF only performs harmonic filtering: I. Increased total apparent power naturally leads to a decrease in the overall power factor. Power factor λ = P/S. Active power P is determined only by the fundamental active power; harmonics do not contribute. After filtering, the fundamental reactive power remains unc...
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Jun 18,2026
Choose the right one, not the most expensive one. This principle also applies to reactive power compensation. In the power industry's reactive power compensation process, the selection of high-voltage reactive power compensation equipment has always been crucial. Today, we'll discuss the applicable scope of high-voltage reactive power compensation equipment. In the context of reactive power compen...
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Jun 23,2026
Understanding Four-Quadrant Reactive Power Compensation Controller The four-quadrant reactive power compensation controller solves this pain point with full-range PQ vector detection. It accurately distinguishes four operating modes: grid supply with inductive loads, grid supply with capacitive loads, on-site power generation with inductive reactive power, and grid feedback with capacitive reactiv...
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Jun 26,2026
The complete process of electricity generation and use can be clearly divided into four main stages: power generation → transmission → distribution → consumption. First, power plants convert various primary energy sources (such as coal, hydropower, wind power, nuclear power, and solar energy) into electrical energy. Then, the large amount of electricity generated by the power plants is efficiently...
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Jun 29,2026
In modern industrial automation, Programmable Logic Controllers (PLCs) serve as the core control units for intelligent production lines, governing equipment operation, data collection and automated process control across manufacturing, energy and processing industries. Many industrial technicians overlook a key fact: most unplanned factory downtime and abnormal system malfunctions are rarely cause...
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Jul 03,2026
Many charging station operators have a question: when charging piles are charging normally, the power factor is perfectly within the standard range, and there are no problems even without capacitor banks or SVG. However, when the station is newly built, there is little traffic, or there is no one charging at night, the power factor inexplicably exceeds the standard, resulting in power factor adjus...
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Jul 06,2026
Introduction In modern industrial, commercial and residential power grids, clean and stable sinusoidal voltage is the foundation for reliable operation of all electrical equipment. However, grid faults, nonlinear loads, switching operations and renewable energy integration constantly introduce various power quality issues. The waveform diagram clearly illustrates four most prevalent power quality ...
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Jul 08,2026
In power systems, the balance of reactive power is crucial, as it directly impacts grid stability and power quality. As an advanced dynamic reactive power compensation device, the SVG (Static Var Generator) is increasingly becoming an indispensable "stabilizer" within power systems. Today, let us take a closer look at the principles, advantages, and application scenarios of SVG dynamic reactive po...
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Jul 11,2026
The quality of electricity directly determines the energy-saving ratio of a company's power consumption system, as high-quality electricity can prevent significant energy waste. So, what is electricity quality, and what factors affect it? What is power quality? Power quality generally refers to the quality of alternating current (AC). That is, the AC power supplied by the power industry to busines...
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Jul 14,2026
Power Quality Insights In modern power systems, sensitive equipment and continuous operations are more vulnerable than ever to power disturbances. Among these disturbances, voltage sag is one of the most common and impactful. Although often brief, voltage sags can cause costly downtime, data loss, and even damage to critical equipment. In this blog, we'll explore what voltage sags are, their cause...
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Jul 16,2026
In industrial production, enterprises often face two major challenges: fluctuating production efficiency and persistently high electricity costs. Most of the time, managers attribute these problems to aging equipment and improper operation by personnel, overlooking a hidden killer lurking in the power system—harmonics. As "electrical pollution" in the power system, harmonics not only directly incr...
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Jul 17,2026
Are your factory's electricity bills skyrocketing? Are precision equipment breaking down unexpectedly? Are your transformers frequently overheating? Are you being fined by the power company for failing to meet power factor standards? These troublesome problems often point to the same root cause— power quality . In the field of power quality management, two star devices are frequently mentioned: SV...
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Jul 20,2026
How Active Power Filters Improve Power Quality in Solar PV Systems As the global adoption of photovoltaic (PV) systems continues to accelerate, maintaining excellent power quality has become just as important as generating clean energy. While solar power offers significant environmental and economic benefits, integrating large-scale PV systems into modern electrical grids also introduces new techn...
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Jul 22,2026
In high and low voltage power systems, grid integration of new energy sources and impact loads tend to trigger complex reactive power issues, such as continuous power fluctuations and harmonic superposition. With power electronic topology and real-time dynamic regulation, SVG reactive power compensation cabinets deliver precise full-range reactive power management, making them special core equipme...
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Jul 24,2026
Many new energy vehicle manufacturing plants and charging stations encounter issues such as excessive power factor at night and inexplicable fines for over-compensation. Everyone knows that resolving capacitive overcompensation requires installing reactors to absorb excess capacitive reactive power. However, the vast majority of electricians on site fell into the same trap: they directly used the ...
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Jul 28,2026
Introduction With the rapid development of modern industries, electrical loads are becoming increasingly complex, bringing higher requirements for power quality, energy efficiency, and grid stability. High voltage capacitor cabinets have become an essential solution for improving power factor, reducing reactive power losses, and optimizing the performance of power distribution systems. The high vo...
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Jul 30,2026
I. Generation of Harmonics In power systems, the fundamental cause of harmonics is the presence of non-linear loads. When current flows through a load and does not maintain a linear relationship with the applied voltage, a non-sinusoidal current is formed, resulting in the generation of harmonics within the circuit. Due to the switching operations of semiconductor thyristors and the non-linear cha...
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Aug 05,2026
Introduction In today’s industrial environment, power quality has become a key factor affecting production efficiency, equipment lifespan, and energy management. With the increasing use of sensitive electrical loads such as automated production lines, semiconductor equipment, data centers, and renewable energy systems, companies are paying more attention to power quality solutions including harmon...
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